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The 35 largest U.S. private companies

Some of the biggest names in business operate outside the public markets. Here's a look at the top players.

Power List: Where the private equity money is Fortune's exclusive look at the country's most powerful buyout firms. (more)
10 private-equity deals gone bustWhen the liquidity is flowing like wine, every deal looks like a perfect ten. But a lot can - and has - gone wrong. (more)
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Koch: From Dixie cups to dieselWith $98 billion in estimated sales, Koch Industries tops Fortune's list of private companies. (more)video
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